Electro-magnetic per mutation-lock



(No Model.) 4 Sheets-Sheet I. E. SEDGWIOK.

ELECTRO MAGNETIC PEEMUTATION LOCK.

i Patented Aug. l0, 1886.

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(No Model.) 4 Sheets-Sheet 2.

F. SEDGWICK.

ELECTRO MAGNETIC PERMUTATION LOCK. No* 347,068.

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4 Sheets-Sheet 3.

(No Model.)

F. SEDGWIGK.

ELECTRO MAGNETIC EEEMUTATION LOCK.4 No. 347,068.

Patented Aug. l0, 1886.

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N. PETERS, Phoxo-Lnmgmpnur. washmgxan. Dv Q EEEGTEO MAGNETIC EEEMUTATION LOCK. No. 347,068.

Patented i./yug. l0, 1886.

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UNITED STATES PATENT OEei'eE.

F DtEDERICK SEDGVICK, OF CINCINNATI, OIIIO, ASSICXOR IO J'OIIN II. PURDY, OF CHICAGO, ILLINOIS.

ELEGTRO=MAGNETIC PERMUTATIONLOCK ILPECIFCATION forming part of Letters Patent No. 347,068, dated August l0, 18536.

Serial No. 141,010. (No model.)

To a/ZZ whom, it may concern: closed, and said safe locked or unlocked with- Beit known that l, FREDERTCK SEDGwICK, out the aid ot' the usual spindle or any direct of Cii'icinnati, in the county of Hamilton and and positive mechanical connection through State ol' Ohio, have invented certain new and the door. A further object is to so const rnct useful Improvenicntsin Electro-MagneticPersaid mechanism that the dial may be placed 55 inutatio1i-Locks, of which the following is a either directly upon the sat'edoorin thcusual description, ret'erencebeing had to the accommanner, or in any place and at any distance panying drawings, in which therefrom, so that the lock mechanism may be Figure lisa front elevationofsaidlock with manipulated by one knowing the combinaio the face-plate removed, showing the respect tion, however distantly he may be removed 6o ive parts in the various positions assumed therefrom at the time. A, still further object when the same is locked, the connections beis to enable said dial to be detached at any ing made by suitable wires and binding-posts time, it' desired, thus removing all possible with a dial. Fig. 2 is a rear view ot` the rcand intelligible means ot operating said tumvolving armature used therein. Fig. 3 is a blers from without. l accomplish said object 65 central horizontal longitudinal sectional view by means preferably of a revolving` armature of said lock'. Fig. 4 is a back view ot' the dialsurrounded by a series olf electro-magnets arplate, showing the spindle-connection with ranged concentrically to its axis, and having the various circuits. Fig. 5 is a central vertheir respective poles upon opposite sides of 2o tical sectional view of said lock. Fig. G is a the same, said magnets numbering three or 7o front view, in detail, of a part of said lock, more, but preferablynot more than tour, the showing the parts in position assumed when size and shape of the same being varied as the same is unlocked. Fig. 7 is a side View maybe found expedient, to obtain as much of the crank and pinion interposed between power as possible consistent with economy of the armature and tumblers tor operating the space, one end of each ot' the wires forming 75 latter. Fig. S is a view of the inside ol` a salethe helix of said magnets, respectively, being door, showing said lock attached thereto and lalternately connected by suitable wires with its connection with t-he bolt-work. Fig. 9 is a series ot' segments upon a stationary plate a central vertical sectional view of saiddoor, outside the safe, said segments being disconshowing the manner oi' connecting the niagnected troni each other and properly insutio nets with the dial t'or manipulating the armalated, while a circuitwire with a batteryconture and tnmblers. Fig. 1t) represents a modinection unites the opposite poles ot' the said iieation ot' Fig. l, and is a rear view, the back magnets with a knob or spindle adapted to replate and part ot` the tumblers being removed, volve upon said plate, and provided with a the remaining mechanism being viewed upon hand thereon, which, by the revolution ot' the S5 the line arr, Fig. 1l, in the direction indicated spindle, alternately makes and breaks the cir by the arrow there shown. Fig. ll is a transcuit ot' the respective magnets, and revolves verse vertical sectional view ot' the constructhe armature accordingly,areverse movement tion shown in Fig. 10, taken upon the line y y, of said dial producing a corresponding move- 4a and viewed in the direction indicated by the nient of said armature. I pret'er to connect 9o arrow there shown; and Fig. l2 is a modificasaid armature by means of a pinion to a section ot't-he construction shown in Fig. Ll. ondary gear havingits axis upon the end of a Like letters of reference indicate like parts crank, the axis of which is common with 'that in the different iigures. of the armature, said secondary gear engag- The purpose et' my invention is to provide ing in turn with au annular wheel, which is 95 an electro-magnetic permutation 01 eombinarigid with the first ot' a series of revolving tion lock so arranged and constructed that tumblers operating in the usual manner, said the tuinblers and bolts in ordinary use may be secondary gear having its axis temporarily re- Inauipulated vfrom without the sate when the tained in a fixed position while revolving said 5o safe-door to which the same is attached is tumblers by means of astud extemlingthereloo from, which engages with a notch in an anglebar or dog forming a part or extension ofthe usual gravity fenee, the stud being released `from said engagement when the notches of all the tumblers are brought into alignment and the fence has fallen therein. This movement in turn locks the tumblers, and the seeondary gear having its axis upon the end of the crank, which is no longer held in a fixed position, as described, the armature-pinion acting thereon, the secondary wheel forms a leverage upon the end of the crank with the teeth of the annular gear for a fnlcrum,whieh causes the crank to revolve upon its aXis,and said projecting stud engagingin a slot in the bolt-bar the latter is thereby shot or retracted, as may be desired,all of which is hereinafter more fully described, and deiinitely pointed out in theclaims.

In the drawings, A represents the case of the lock, which may be constructed of brass or other metal in the usual manner. Inclosed withinsaid lock, arranged,preferably,'in a circular forni, and secured to said case by any suitable means are three or more, but preferably four, electro-magnets A A2,B B,C C', and

-D D', the two letters being used in each case to designate the two poles of the respect-ive .magnets I prefer to connect said magnets with 'each other by means of a ring, E, Figs. 3 and 5, of soit iron, said ring serving as a means of securely attaching said magnets to the case A, while at the same time it forms the base of said magnets. Said magnets, respectively, are provided with pole -exten sions a c, b c c, and d d', hereinafter more fully described. Extending across from the opposite poles of a magnet, as B B', and rigidly secured thereto by screws f j', I place a suitable bar, F, of brass or other non 1nag netizable metal, which serves as a support for one end of a screw, G, Figs. 3, 5, and 6. Said screw G is inserted from the rear, and is further supported by having its head introduced into a sleeve or socket, h, of a hollow stud, H, Figs. v3 and 5, rigidly secured to and forming a part of a circular screw-plate, H', which is adjusted by means of a screw thread to the plate A, as clearly shown in the drawings. Said Sleeve h isintended to form a bearing or axis for the usual permutation-tumblers, and may be made longer or shorter, according to the number employed,ashoulder being formed on said stud to retain them in place. I, J, and K represent three of said tumblers, while the fourth consists, preferably, of an annular ring,

L, formed upon or secured rigidly to the back` ot' an annular gear, M, which is provided with and rigidly secured to a sleeve, m, within the sleeve 71 forming a part of the stud H, and having its bearing upon a third sleeve, N, Fig. 5, which is fitted directly to and has its bear ing uponthat portion ofthe body of the screw G contained within the sleeve h. Upon the front or outer end of the sleeve N, and rigidly secured thereto, is a crank, N,Figs. 3, 5, 6,

and 7, to the end of which is loosely secured by means of asuitable wrist-pin a gear-wheel, O, adapted to engage the teeth of the annular gear-wheel, M. Upon that part of the screw G between the bar F and the sleeve N (better shown in Fig. 5) I place a fourth sleeve, l?, to which is rigidly attached a small pinion, Q,

(better shown in Figs. 2, 3,. and 6.) which in segmental arms or cross-bars r r, in the form clearly shown in Fig. 2, so as to conform to the shape and enable them to be brought into close proximity to the ends of the pole-extensions a a', b b', c c, and d d', whichlatter should be made concentric, as shown, with the axis of said armature. I prefer to have the ends r r of said armature extend somewhat over said pole extensions, as shown in the drawings. Secured by a rivet or otherwise to one of said arms r' is a spring, R', Fig. 2, the normal position of which is even with or within the arc of the circle described by said arm, a notch or recess, r2, being provided'ior the reception of said spring. Vhcn said armature is attracted by the magnet, said spring is drawn outwardly, as shown, and the saine heilig brought into direct contact with the pole-extension ol" said magnet it acts as a braken pon said armature, and thus prevents the former from wavering. The circuit being broken, said brake or shoe resumes its normal position, and the armature is again free to revolve without friction.

Extending across lengthwise of the lock between the cross-bar F and the magnets AAZ, and outside of the wheel O, I place a bolt-bar, S, constructed as shown,with slots s s', Fig. 6,

therein, the former of which is made to per-v mit said bar to reciprocate without being obstructed by the sleeve P or screw G, while a pin or stud, 0, Fig. (5, which is an extension of the wrist-pin or axial bearing of the wheel O, is extended through the slot s', and by its movement, when the crank-arm '71. is rotated, serves to actuate the bolt-bar S, which, in turn, shoots or retracts the bolt S', which is attached thereto by means of a screw s, Fig. l, or otherwise.

Fig. 8 represents the usual bolt-work upon the safedoor U, SL S being the bolts, Sil S3 the cross-bars connecting the same, while s2 s represent the ordinary shears or crank-levers, pivoted at s3 s, between the free ends of which the bolt S is interposed, as shown, when the safe is locked, said shears having their opposite ends pivoted at s" s" to links s", which, in turn,are rigidly secured to the cross-bar S3.

Pivoted to the pole-extension d', Fig. at t, is an angle-bar, T, an arm, t', Fig. 3, of which is extended back across and above the tumblers I, J, K, and L, forming the usual IOO IIS

fence, which is so adjusted as to drop into the usual notches in the periphery of said tumblers, when the same are brought into proper alignment therewith, three of said notches, fi, L', and l, being shown in Fig. 3, while the dotted lines in Fig. t3 indicate all in alignment. Said angle-bar T has a down wardly-curved extension, l", formed as clearly shown in Fig. G, and provided with a lug or shoulder, l, and a notch, t, Figs. 1 and 6. An extension, o, ofthe stud o, Fig. 7, made to conform in shape to said notch is caused to project outwardly to a sutlicient extent to eugage said notch, as hereinafter shown, Fig. l representing the same in engagement therewith.

Projecting laterally from the stud H, Fig. 3, and rigidly attached thereto, is a stud or projection, it', in close proximity to the tumbler I. A scre\v,v,which is intended to abut against said stud it in the usual manner, is secured to the tumbler l, thus forming an initial point from which to calculate the permutation of the tumblers. Other screws, the heads of which project in the usual way from the tumblers J', l, and L, as clearly shown in Figs. 3 and 5, enable the tumblers I, J, and K, to be manipulated through the revolution ol' the annular wheel M and its tumbler L, thus completing the pernmtation.

A3, Figs. Ll, Il, and 8, represents a plate, of vulcanite or other insu lating material, secured to one end ol' the case A, to which bindingposts ((1,02, c, and tI are secured, the same being insulated by said plate from the lock-case A. A iit'th binding-post, a", Fig. l, passes through the plate A and is screwed, as shown, into the ease A. One end of each ol' the helixfwires af, li, c", and d, respectively, is eonnected with one ot' the bindingposts fr b* ci d2 in the order named, while one end of all of the lielixwiii'es c5 1f c d, Fig. I, the respective coils of which are designated by the letters AL', B, C', and D, is secured tothe case A by means of the screws a b5 c5 d?, thus enabling a circuit to be formed between any one of the binding-posts a, IF, ci, or di through the magnet with which the same is connected, the lock-case, andthe bi riding-post at. Connected with the landing-posts c, b, e2, di, and ai are insulated wires A", Ill, )2, D, and A, four of which are carried through the door U, Figs. S and 9, ol.` the safe, in the manner clearly shown in said lastnamcd ligure, to prevent the plates of said door from being drilled or otherwise penetrated.

In practice I prefer not to use the wire A5 shown in Fig. l, as it is obvious that an electric circuit may be completed with equal facility through the walls of the safe and lockcase A. Fig. Elshows such a construction,the binding-post c" therein corresponding to a* iu Fig. l, (the latter of which is used in said iigure merely to show au operative construction) in that it connects directly with the metallic plate of the door U.

V, Figs. 1 and 9, is a battery-cup, which is preferably placed outside of the safe. Upon the outside of the safe, also, and secured either tothe door of the same or detached therefrom, as may be desired, is a plate, NV, Figs. l, Lt, and 9, of vulcanite or like insulating material, provided with binding-posts c" a b c d, to the opposite side of which is rigidly secured by means of screws or rivets ir, Fig. I, a series of metallic blocks or segments, a", Fig. 4, arranged in circular l'orm, an equal number of which are alternately con nccted with the wires connecting with the binding-posts as, t, c, and d, and for the purpose ol' designating said connection and the various circuits which may be formed thereby said segments or blocks y1r are also marked with the respective letters used to indicate the wires with which they connect-- viz., A, B2, and D2. A metallic knob, X, provided with the usual graduated dial, X, Fig. l, is attached to the opposite side ofsaid insulated plate XV by means of a spindle, ai, Fig. 4, extending through the same. ltigidly attached to the spindle .t in any well-known manner so as to revolve therewith is a hand, y, the end of which is so adjusted as to be brought into metallic contact with the plates fur as said spindle is rotated, said blocks or ments lir being arranged concentrically with the spindle The wire A is connected directly with said spindle, so that an electric circuit may be completed through said wire A5, the spindle fr, and metallic hand Y, with any one of the four other wires described, accordingly as said handis brought in contact with any one ofthe six termini of each of said wires. Thus it is obviousthat the revolution of the knob X would alternately make and break the circuit four times with each of said series of magnets in regular succession, while a change in the movement of said dial would produce a corresponding change in the order of said currents. It is obvious that a number of said segments or blocks may be increased or diminished at will; but it should be some multiple ofthe number of magnets employed, in order to calculate the various permutations or combinations therefrom. A number of segments corresponding to that ofthe magnets would serve to rotate the armature equally as well as a greater number, the increase tending only to effect the complexity ol` the per mutations.

I have described a circular dial with a rotating switch mechanism or circuit-breaker in connection therewith as the method most ap proved by me for manipulating the tumblers by electro-magnetic inllueuce, but I do not confine myself to said method, for the reason that I should regard any switch-mechanism or circuit-breaker whereby one would be enabled to excite said magnets in a definite or determined order as a mere variation and inferior substitute for said device.

For convenience in actual practice, I prefer to secure an insulating-plate, IV, Fi'. 9, to

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' to be detached when desired.

Having described the various parts of said mechanism in detail, I will now .proceed to describe the operation ot' the same.

It is obvious that the armature It may be caused to revolve in either direction by the revolution of the knob X, and, assuming the parts to be in a locked position, as shown in Fig. l, the angle-bar T is raised, thereby causing the piu o to engage with the notch if,

by which it is held in a stationary position until the tumbler-notches are brought into such alignment as to permit the fence t to fall therein. The axial bearing of the wheel O being thus temporarily held in a tixed position, and said wheel at the same time being revolved by the pinion Q, attached to the armature F, the annular wheel M is thereby caused to rotate, which, in turn, actuates the tumblers I, J, K, and L, according to the direction and extent of its movement. As stated, the stud h is the initial point from which the permutation is calculated, and hence it follows that said tumblers may be set up by revolving said knob a sufficient number of times in one direction to bring the screw t" in contact with the stud t, and the remainingtum bler-screws into engagement with each other in their respective order-allowauce being made for the direction of movement of the stud 0', in order to finally actuate the bolt-har S. The tumblers being thus set up, they are then manipulated by the dial in the usual manner, according to the permutation or combination fixed upon, it being understood that in the device as shown a greater number of revolutions of the dial .would be required to etlect the same result, by reason of the interposed gears 0 Q, than if the armature were connected directlyto. andl iliade to revolve in unison with the driving-tumbler, which may be accomplished by providing a different mechanism for actuating the bolt-bar S. Vhen the manipulation of the tumblers is completed and their notches brought into alignment, the dropping of the fence t' therein at the same time causes the stud o to be released from the notch t by the falling ot'. the lower extension, T', of said angle-bar T. v The fence t' being in the notches of said tumblers, the first or driving tumbler, L, of which isv rigid with'the wheel M, the latter is thus held in a fixed position, thus causing the axis of the wheel O to move, said wheel exertinga leverage upon the wrist-pin at the end of the crank N', being impelled by the rotation of the pinion Q, and, having its fulcrum upon the teeth of the annular wheel M, it is caused to assume the position shown in Fig. 6, while the pin o', bearing in the slot s' of the bolt-bar S, retracts the latter, as shown in said figure, at the same time beingin positive contact with the extension T of the angle-bar T, the fence t is, for

the time being, held securely Within the tumbler-notches. Said extension also tends by its gravity to insure the dropping of said fence, when desired. `A reversal of this movement shoots7 the bolt S, when the stud o engages with the lug t2, and after raising the fence out of the notches is arrested in its progress, while the wheel O, continuing to re volve, rotates the tumblers, thus preventing the fence from again falling, and locks the safe.

I do not confine myself to the specidc arrangement of said magnets, nor to the use of a revolving armature for rotating said tumblers, as the same may be accomplished by means of a reciprocating armature, R,.Figs. l() and l1, said armature being sustained in a pendent position, as shown in said Fig. 10, by means of a stirrup, r3, Fig. 11, and shown in dotted lines in Fig. 10, said stirrup being loosely secured to the axis formed by the pin or screw G, by means of a loose sleeve, r. In addition to the action of gravity of the armature R, which is loosely hinged to said stirrup at T5, the latter is normally held in au upright position by means of a spring, 1', (bet,- ter shown in dotted lines in Fig. 10,) which bears upon a notch or lflat surface upon the sleeve Ir. A cross-arm, rl, is attached to said armature R, near the extremities of which are projecting teeth or pawls T8 rs, adapted to engage with a disk, M, rigidly attached to the tumbler L, vsaid disk being in lieu ofthe annular wheel M. The periphery of the disk M may be notched or smooth; but I prefer it as shown, and in lieu of said edged teeth1B rs reversible pawls may be employed. A B are electro-magnets, connected by means of wires A4 B2 to insulated plates al b, attached to the plate YV, Fig. 12. The terminal wires or opposite poles of said magnets are connected with the lock-case by wires a5 b* and screws a b5, respectively, Figs. 10 and 11. Instead of placing the segmental blocks w close together, as shown in Fig. 4, I separate them, substantially asshown in Fig. 12, and connect them all to the circuit-wire A5, which is connected with the lock-ease at ai. The spindle .t is con nected by awire, m', to an insulated plate, x2, adjacent to the plates al b, and adapted to be connected with one or the other in turn by means of an ordinary switch-piu, arwhich may be inserted in one or the other of the perforations zr* af, thus completing the circuit with one or the other of the magnets, the lock-case, battery V, blocks w', and hand Y. Vhen the hand Y is in contact with any one of the blocks lw', and the pin is inserted, as shown, the

magnet A is excited and the armature attracted thereto. As said armature is pivotall y connected with' the end of the stirrup r3, the former is lirst moved upon the axis of said pivot, as offering the least resistance, until the tooth rs upon the side nearest the magnet A bears upon the periphery of the disk M', when the axial movement is transferred to the stirrup-axis, thus actuating the disk MC As the hand Y (which, in this construction, may be revolved continuously in the same direction, if desired) passes from one block zr'to another,

the circuit is broken, and the springt, as well as the gravity of the armature,causes it to resume its :normal position until the circuit is again made,wl.1enit is moved as before. rlhus, as long as the pin a remains in one position the moving of the hand Y serves to reciprocate the armature and thus revolve the disk M' in one direction, said direction being reversed upon removing` the pin to the other perforation and completing the circuit with the opposite magnet, thereby enabling one to manipulate said tumblers at will according to the number of revolutions ofthe hand Y and the position of the pin afi Moreover, I do not regard myself as coniined to the particular mode described for throwing or retracting the bolt-bar, as it may sometimes be found desirable to connect the l'ence t directly therewith by means ot' the link t, Fig. ll,in which case the movement ol' the tumbler L after said fence shall have engaged with the notches in the several iumblers will shoot or retract the bolt as desired, a guard, t?, being preferably attached to the lock-ease to prevent said fence from falling out ofthe notches in the event of the safe being overturned while locked; or said result may be accomplished in various other ways which would suggest themselves to one skilled in the art,a-i'ter having familiarized himself with my invention.

In addition the modiiication above suggested I have also contemplated the use of said lock in connection with a time mechanism located within the safe for switching said magnets out ot circuit during a predetermined period, and thus preventing the manipulation ofthe tumblers at such time by those familiar with the combination. Either my electro magnetic time mechanism upon which application for Letters 'Patent is now pending or any mechanical timer may be used and adapted thereto, which matter will vform the subject of a future application.

It is apparent from the foregoing that said tumblers may be manipulated and the safe locked or unlocked by a person at any distance therel'rom,\vhile the dial may be removed aud disposed of as desired, thus pre venting anyintelligible means of operatingthe combination (even were it known) by others than those having custody ofthe dial.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. The combination, with a combinationloek arranged within a safe or other secure receptacle, of a series of electro-magnets having suitable electrical connections from without, au electro-generator and switching device wherebyr said magnets may be excited from without the safe, and an armature actuated thereby for imparting motion to the tumblers of said lock, substantially as and for the purposes specied.

2. Au electro-magneticpermutation.or combination lock provided with a series el' electro-magnets arranged therein, suitable electrical connections from without,and a batterycup, whereby said magnets maybe excited in regular order from without the safe, and a reY volving armature actuated thereby for imparting motion through suitable gearings to a series of tnmblers in said lock, substantially as and for the purposes set forth.

3. A permutation lock in which are aranged a series ol.A electro-magnets which serve to actuate an armature connect-ed by intermediate gears or equivalent means with the driver of a series of tumblers, said magnets being electrically connected with a circuit-breaking mechanism outside of the safe, anda batterycup,whereby motion may be imparted to said tnmblcrs as desired by successively manipulating currents of electricity in regular successive order through said magnets, respectively, substantially as described.

4. An electro magnetic permutation-lock eonsistingot suitable magnets arranged therein, an armature in position to be actuated thereby and connected with the drivingtumblers, and a dial-hand and battery electrically connected with said magnets 'from without the safe, the revolution of said dial serving to alternately bring said hand into electrical contact with the terminal wires of said magnets in regular order successively, substantially in the manner and for the purposes specified.

5. An elcctromagnetic permutation-lock provided with suitable electro-magnets arranged in a circular form therein, havinOy their pole-extensions concentric with a revolving armature geared to the driving-tumbler, electrical connections with said magnets, and abattery-eup and revolving dial outside otA the safe, said dial being provided with a hand upon its spindle, connected with the ci redit-wire, whereby the circuit may be openedand closed with said circuit-wire and either ol' said magnetsin an order to correspond with and be deter mined by the numbers upon said dial, substantially as described.

6. An electro-magnetic combination or permutation lock provided with a series oi revolving tnmblers, a revolving armature connected therewith, electro-magnets in electrical proximity thereto, means for connecting the same with a battery and dial outside ol the safe, and a system of segments representing the termini ofthe helix-wires from one pole ol" said magnets, respectively, said dial being provided with a hand adapted to revolve therewith, the revolution of which serves to make and break the circuit in a regular successive order, accordingly as the same is brought into contact with said segments, respectively, substantially as described.

if'e In an electro-magnetic permutationlock,

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the revolving armature R, provided with a spring, R, constructed and arranged as and for the purposes specified.

8. rlhe combination, in an electro-magnetic permutation-lock, of a series ot electro-magnets arranged therein, a revolving` armature in electrical proximity thereto, means for con necting said armature to the driver of a series of rotating tumblers, a crank-connection with the bolt-bar, and a dial and segmental switch outside of the safe, with suitable connectingwires and a battery-cup whereby the blocking device of multiple bolt-work may be manipulated from without the safe,substantially'as described.

9. rllhe combination, in a safe provided with the usual multiple bolt-work,with a lock having the usual rotating tumblers,and a series of electro-magnets whose respective poles are electrically connect-ed with the outside of the safe, a battery-cup, and rotary switch-dial, of a revolving armature having a pinion rigidly secured to its axis, said pinion engaging a gear-wheel upon the end ot' a crank having a common axis with said armature, said gearwheel engaging in turn with an annular gear attached to the driving-tumbler, a notched angle-bar, T, felice t', extension-stud o o', and bolt-bar S, with a suitable bolt, allconstruct'ed and arranged substantially as specified.

10. rllhe combination, in apermutation-lock, of the usual rotating tumblers, electro-magnets arranged concentrically with the axis thereof, a revolving armature, gears Q, O, and M, crank N, bar S, and crank-pin extension, with angle-bar T, fence t', wires AL A5 B2 DL C2, a battery-cup, and a rotating dial and switch, substantially as described.

11. In an electro magnetic' permutationlock, the rotating dial X', suitably numbered or lettered and provided with hand Y, in combination with a series of segmental blocks forming the electrical termini of a number of electro-magnets within said lock, substantially as described.

12. The combination, with an electro-magnetic permutation-lock, ofthe segmental blocks w', the metallic hand Y, revolving dial-plate X', and abattery, substantially as described.

18. An electro-magnetic permutation-lock placed inside of the receptacle to be locked, a series of circuits connecting electromagnets in proximity tothe lock-tumblers, with an electro-generator and a circuit-breaker operated irom the outside of said receptacle to move an armature inside thereof and actuate the lock mechanism by manipulating said outnets, and an armature having intermediate operating connection with the lock-tumblers, and two or more electric circuits connecting said magnets with a source of electricity, and an outside circuit-breaker connected in serial circuit, whereby an armature is moved by making and breaking circuits, and the tumblers rotated at the will of the operator, substantially as described.

16. rIhe combination, with a permutationlock having electrical]y-operated tumblers, of an indicating-dial provided with a hand and a series of blocks forming the termini of the 1nagnet-coils in said lock,'the blocks being in the path traversed by said hand, whereby the circuit with said magnets may be made and broken in serial order, substantially as and for the purposes set forth.

17. The combination, with an electromagnetic permutation-lock arranged within the receptacle to be locked, and having au armature and a series of magnets` in proximity thereto, of a series of circuits connecting with the outside of a safe, a source ot' electricity, and a detachable switch or circuitA breaking dial, substantially as described. y

1S. The combination of an electric switch or circuit-breaker arranged outside of the safe or vault and electrically connected with magnets arranged within a permutation-lock placed within a safe or vault, said circuit-breaker having means, as a metal hand, for shifting the current at will, and thereby rotating the tumblers of the lock in either direction, as desired, and a dial to indicate the relative positions or movements of the tumblers of said lock, substantially as shown and described.

FREDERICK SEDGVICK.

Vitnesses:

v D. H. FLETCHER, W. S. Baken.

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